You've heard the buzz: Radiation from cell phones, laptops, and tablets could be harmful. Before you panic, follow this realistic advice for making the digital world less risky -- especially for our kids.

Would you let your child eat 50 pounds of sugar? That's how much the average 4- to 8-year-old goes through in a year. As researchers are finding that sugar harms kids in ways never imagined, the government is finally setting limits.